Re: Having trouble pooping / in pain
I'd blame the formula for the poop issues. That's not me being judgy- it's simply that formula tends to result in harder stools than breastmilk. I noticed it when my first was a newborn and we were doing a breastmilk/formula combo- the more formula she had, the more pasty/solid her poops were. So I think the more you can nurse, and the less formula you use, the better the poop situation to going to be.
FTR, 4.5 oz of breastmilk is a full feeding for almost all breastfed babies, who tend to take around 2-4 oz on average, with maybe an occasional 5 oz feed when mom is really full. So 4.5 oz from pumping is a lot of milk, especially when you consider that the baby typically extracts more milk than the pump does. If your supply is still roughly equivalent to what it was back when you introduced the formula supplements, you could probably phase out any remaining supplements fairly quickly!
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"